题目内容：

在下面对话的空白处填上适当的话语（话语可以是句子、短语或词），使对话完整，将答案写在答题纸的相应位置上.（共10分，每小题2分）

A: 1.___________________________, sir ?

B:  Yes, please.2._______________________ a pair of sports shoes.

A: What size do you want, please ?

B: Size forty one.

A: OK! What about this pair ?

B: Size forty one.

A:  OK!  What about this pair ?

B: Sorry !  I 3.______________ black shoes.

A: Oh, we 've also got blue ones.

B:  Can I 4.__________________ on ?

A:  Yes, please .

B:5.__________________ each pair ?

A: Thirty- five yuan.

B: All right. I 'll take it.